33320340442 has 16 divisors (see below), whose sum is σ = 55221435072. Its totient is φ = 14998413760.

The previous prime is 33320340437. The next prime is 33320340463. The reversal of 33320340442 is 24404302333.

It is a super-2 number, since 2×33320340442² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33320340442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21303784 + ... + 21305347.

It is an arithmetic number, because the mean of its divisors is an integer number (3451339692).

Almost surely, 2^33320340442 is an apocalyptic number.

33320340442 is a deficient number, since it is larger than the sum of its proper divisors (21901094630).

33320340442 is a wasteful number, since it uses less digits than its factorization.

33320340442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42609173.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 33320340442 its reverse (24404302333), we get a palindrome (57724642775).

The spelling of 33320340442 in words is "thirty-three billion, three hundred twenty million, three hundred forty thousand, four hundred forty-two".